McCulloch CS 42S, Operator'S Manual

Page: 15 / 536

bar is bent or cracked, or when excess heating or
burring of the rails occurs. If replacement is necessary,
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the repair parts list or on the decal located on the
chainsaw.
CHECK FUEL MIXTURE LEVEL
See FUELING ENGINE under the OPERATION
section.
LUBRICATION
See GUIDE BAR AND CHAIN OIL under the
OPERATION section.
INSPECT AND CLEAN THE UNIT AND
DECALS
After each use, inspect complete unit for loose or
damaged parts. Clean the unit and decals using a
damp cloth with a mild detergent.
Wipe off unit with a clean dry cloth.
CHECK THE CHAIN BRAKE
See CHAIN BRAKE in the OPERATION section.
CLEAN AIR FILTER
a
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of the engine and increases fuel consumption and
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10 tanks of fuel or 5 hours of operation, whichever
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every 50 hours of operation, or annually, whichever
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1.
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2. Remove the cylinder cover.
3.
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4.
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with clean cool water. Air dry completely before
reinstalling.
5.
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6. Reinstall the cylinder cover and three screws
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INSPECT MUFFLER AND SPARK
ARRESTING SCREEN
As the unit is used, carbon deposits build up on the
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engine performance.
Replace the spark arresting screen if breaks occur.
CLEANING THE SPARK ARRESTING
SCREEN
1.
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2. Remove the exhaust outlet cover.
3.
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screen carefully to prevent damage.
4. Clean the spark arresting screen gently with a wire
brush. Replace screen if breaks are found.
5.
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6. Reinstall spark arresting screen, exhaust outlet
cover, and nut. Tighten nut securely to 2,8-4 N-m
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REPLACE SPARK PLUG
The spark plug should be replaced each year to
ensure the engine starts easier and runs better.
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1.
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2. Remove the cylinder cover.
15